Casio Qt 6100 Service Manual

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3. DISASSEMBLY
■ QT-6100
The photos show a similar model, QT-6000. Therefore the appearance may slightly differ.
▪ The number of COM ports has been changed from 6 to 3.
▪ The speaker has been deleted, and a buzzer has been added on the E819-S1 board.
  1. Separate the main unit and the stand.
  2. Remove one screw and the cover.
  3. Remove two screws and the cover.
  4. Remove ten screws.
  5. Remove one screw and the lid of the software key.
  6. Remove the wiring for the DRAWER (a cable and an...

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  7. Open the CARD SLOT COVER.
  8. Remove each screw, and then the PC CARD and the COVER for the CF CARD.
  9. Release the hook and remove the REAR CASE.
 10. Remove four screws and the iron plate.
 11. Remove three screws.
12. Remove four connectors, one FPC and the IO unit.
FPC
Connectors
Screw × 4Screw × 3
CARD SLOT COVER
Screws 

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 13. Remove the connector for the battery and the battery.15. Remove four connectors.
 14. Remove twelve screws and the metal bracket.
Connectors × 4
FPC
 15. Remove three connectors and one FPC.
Screw × 3Screw × 3Screw × 3
Screw × 3
Connectors × 3 

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 16. Remove six screws, one connector, one FPC, three bosses, and then remove the main PCB.
FPC
Connectors
boss
Screw × 6
 17. Remove 14 screws and then the LCD unit.
 18. Remove two screws, one connector and the inverter PCB.
 19. Remove four screws and the LCD.
Screw × 14
Screw × 2Connectors
Screw × 4
The touch panel is fixed by double-sided tape. 

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■ QT-6060D
  1. Remove four screws.
  2. Release the connector and remove the IO PCB.
  3. Remove four screws and separate the unit as shown below.
Screw × 4Connector
Screw × 4
  4. Remove the cap.
  5. Remove four screws under both packing.
Screw × 2Screw × 2 

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  6. Release the hook and remove the REAR CASE.
  7. Remove five screws, connector and the HINGE.
  8. Remove seven screws and separate the LCD Unit.
Screw × 7
Screw × 5 

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4. ASSEMBLY
■ QT-6100
The photos show a similar model, QT-6000. Therefore the appearance may slightly differ.
▪ The number of COM ports has been changed from 6 to 3.
▪ The speaker has been deleted, and a buzzer has been added on the E819-S1 board.
  1. Place the LCD UNIT in the frame and fix it with four screws.
  2. Connect the connector and fix the inverter PCB with two screws.
Screw × 2
  3. Fix the LCD UNIT to the FRONT CASE with 14 screws.
Fix the screws from above the earth plate.
Bind the...

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  5. Connect one PFC and three connector.
  6. Fix the iron plate with twelve screws.
Terminal side
  7. Connect four connectors.
Screw × 3Screw × 3Screw × 3
Screw × 3
Connectors × 4
Connectors × 3
  4. Fix the main PCB with six screws and three bosses.
FPC
Connector
Boss × 3
Screw × 6 

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  8. Connect the connector for the battery and assemble the battery.
  9. Assemble the IO Unit and fix it with three screws.
   Connect four connectors and one FPC.
FPC
Screw × 3
 10. Fix the iron plate with four screws.
Screw × 4
Connectors 

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 11. Assemble the REAR CASE.
   Hook the REAR CASE and fix it with ten screws.
 12. Fix the PC CARD and the CF CARD COVER.
   Fix the backup battery cover with one screw.
   Connect the DRAWER wiring (a cable and an earth). 
 13. Fix the case with two screws.
Screw × 10
 14. Fix the IP PORT COVER and the stand.
CARD SLOT COVER
Screws